Leveling the curve of Spee during finishing improves which aspects?

• A. Occlusal balance, function, and esthetics
• B. Only root morphology
• C. Only brace mechanics
• D. None of the above

Answer: (A)

Leveling the Curve of Spee targets the sagittal alignment of the occlusal surfaces. A deep Curve of Spee concentrates occlusal contacts and can create posterior interference and uneven load distribution. By leveling it, the posterior teeth contact more evenly in centric occlusion and disclusion during movements improves. This leads to better occlusal balance, smoother and more efficient function during chewing, and a more harmonious esthetic result, since a flat or harmonized occlusal curve supports a stable bite and pleasing incisal guidance. Root morphology isn’t altered by finishing, and while proper brace mechanics help achieve leveling, the main outcomes are occlusal balance, function, and esthetics.